Infineon Technologies CY15V116QN-40BKXI

Overview

CY15V116QN-40BKXI from Infineon is a 16 Mb serial ferroelectric RAM (F-RAM) organized as 2048K × 8, operating at up to 40 MHz SPI clock, with 1.71–1.89 V supply, −40°C to +85°C industrial temperature range, and 10¹⁵ read/write endurance. It serves as non-volatile data logging memory in real-time industrial controllers where rapid, deterministic writes eliminate flash/EEPROM latency.

For engineers reviewing the CY15V116QN-40BKXI datasheet, CY15V116QN-40BKXI pinout, CY15V116QN-40BKXI application, or CY15V116QN-40BKXI equivalent, key selection criteria include instant write capability, ultra-low deep power-down current (1.10 µA), dedicated 256-byte reflow-survivable sector, and hardware/software write protection for mission-critical firmware parameter storage.

Technical Context

The CY15V116QN-40BKXI implements an SPI slave interface compliant with Modes 0 and 3, supporting zero-latency byte/page writes without polling. Its ferroelectric memory array enables immediate data persistence upon SI bit transfer completion, eliminating erase-before-write overhead inherent in flash.

It integrates a non-volatile status register, manufacturer/product ID, unique device ID, and 8-byte programmable serial number. The dedicated 256-byte special sector retains data across three standard reflow cycles, enabling board-level traceability without external EEPROM.

Key Specifications

Pinout & Package

Package: 24-ball fine-pitch ball grid array (FBGA), 4.0 mm × 3.0 mm × 0.8 mm, RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar non-volatile serial memory applications.

Compared with CY15B116QN-40BKXI, the CY15V116QN-40BKXI offers tighter voltage tolerance for advanced low-power SoCs, while FM25V10-G trades density and speed for lower unit cost in simpler embedded nodes.

Availability

CY15V116QN-40BKXI is available at Aetrix Electronics and suitable for industrial data loggers, smart meter firmware storage, and medical calibration parameter retention requiring stable component supply across extended product lifecycles.

Supply support for CY15V116QN-40BKXI includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor leader specializing in power management, automotive MCUs, and high-reliability memory solutions for industrial and mission-critical systems.

The EXCELON™ LP F-RAM product line targets applications demanding extreme write endurance and deterministic non-volatility-replacing serial flash and EEPROM in data-intensive, low-power, and safety-aware embedded systems.

FAQ

Is CY15V116QN-40BKXI pin-compatible with CY15B116QN-40BKXI?

Yes, both devices share identical 24-ball FBGA package, pin assignment, and SPI command set. The only functional difference is the VDD operating range: CY15V116QN requires 1.71–1.89 V, while CY15B116QN supports 1.8–3.6 V. Electrical signaling and timing parameters are otherwise identical.

Does the 256-byte special sector require separate addressing or commands?

No. The special sector is accessed using standard READ/WRITE opcodes (0x03/0x02) with addresses 0x1FFC00–0x1FFCFF. It behaves identically to main array memory but is fabricated with enhanced thermal robustness to survive three JEDEC J-STD-020 reflow profiles without data loss.

Can the Unique Device ID be overwritten or disabled?

No. The 64-bit Unique Device ID is factory-laser-programmed into non-volatile silicon fuses and is read-only. It cannot be altered, erased, or disabled. Only the 8-byte serial number register (accessible via 0x1B opcode) is user-writable and persistent across power cycles.

What SPI modes does CY15V116QN-40BKXI support, and how are they selected?

The device natively supports SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1). Mode selection is automatic and determined by the host controller's SCK idle state and sampling edge-no configuration register or command is required. Both modes operate up to 40 MHz with identical timing specifications.